{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The most potent analogs exhibited single digit nanomolar inhibition at the human serotonin transporter but were 10 - fold less active than the previously reported compounds ."}
{"Chemical": []}